Unit Converter
Convert length, weight, temperature, volume and speed. Type a value and see every unit at once.
All units
How to use the unit converter
- Pick a category such as Length or Weight.
- Type a value and choose the From and To units (use the swap button to flip them).
- The result updates as you type, and every other unit is listed below.
Frequently asked questions
How many centimeters are in an inch?
One inch is exactly 2.54 centimeters. One foot is 30.48 cm and one mile is 1.609344 km.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. So 20 °C is 68 °F. To go back, subtract 32 and multiply by 5/9.
How many pounds are in a kilogram?
One kilogram is about 2.20462 pounds, and one pound is exactly 0.45359237 kg.
Are US and UK gallons the same?
No. A US gallon is 3.785 liters, while an imperial (UK) gallon is 4.546 liters. This tool lists both.